How to Find Underground Plastic Pipes

Underground plastic pipes are an essential component of many infrastructures, including water supply, drainage, gas, and communication systems. However, locating these pipes can be challenging, especially when they are buried deep underground. Knowing how to find underground plastic pipes can save time, money, and effort in locating and repairing them. This article will provide an overview of the different types of underground plastic pipes and various methods for locating them.

Types of Underground Plastic Pipes

• High-Density Polyethylene (HDPE) Pipes
  
  HDPE pipes are one of the most commonly used types of plastic pipes for underground applications. They are made of high-density polyethylene material, which provides excellent strength, flexibility, and durability. HDPE pipes are resistant to corrosion, abrasion, and chemicals, making them ideal for various industrial and municipal applications, such as water supply, sewage, gas, and oil transport.
  
  HDPE pipes come in different sizes, and their thickness depends on the application. They can withstand high pressure, making them suitable for water supply systems in urban areas. HDPE pipes can also be used for irrigation systems, as they can withstand extreme weather conditions.
  
  
• Polyvinyl Chloride (PVC) Pipes
  
  PVC pipes are another popular type of plastic pipe used for underground applications. They are made of polyvinyl chloride material, which is lightweight, strong, and durable. PVC pipes are resistant to corrosion, chemicals, and UV radiation, making them ideal for water supply, drainage, and irrigation systems.
  
  PVC pipes come in different sizes and can withstand high pressure. They are suitable for water supply systems in residential and commercial buildings. PVC pipes are easy to install, and their joints are leak-proof, making them ideal for underground applications.
  
  
• Cross-Linked Polyethylene (PEX) Pipes
  
  PEX pipes are a type of plastic pipe used for underground applications, mainly for water supply systems. They are made of cross-linked polyethylene material, which provides excellent flexibility and durability. PEX pipes are resistant to freezing, chemicals, and corrosion, making them suitable for harsh environments.
  
  PEX pipes come in different sizes, and their thickness depends on the application. They can withstand high pressure and are suitable for water supply systems in residential and commercial buildings. PEX pipes are easy to install and can be used for hot and cold water supply systems.
  
  
• Chlorinated Polyvinyl Chloride (CPVC) Pipes
  
  CPVC pipes are a type of plastic pipe used for underground applications, mainly for hot water supply systems. They are made of chlorinated polyvinyl chloride material, which is resistant to high temperatures, chemicals, and corrosion. CPVC pipes are suitable for hot water supply and distribution systems in commercial and residential buildings.
  
  CPVC pipes come in different sizes and can withstand high pressure. They are easy to install and require minimal maintenance. CPVC pipes are suitable for underground applications where hot water supply is required.
  
  
• Polyethylene (PE) Pipes
  
  PE pipes are a type of plastic pipe used for underground applications, mainly for gas and water supply systems. They are made of polyethylene material, which provides excellent strength, flexibility, and durability. PE pipes are resistant to corrosion, abrasion, and chemicals, making them suitable for various industrial and municipal applications.
  
  PE pipes come in different sizes, and their thickness depends on the application. They can withstand high pressure and are suitable for water supply systems in urban areas. PE pipes are also used for gas distribution systems, as they can withstand high-pressure gas flow.

Methods for Finding Underground Plastic Pipes

1. Check Utility Records.
   
   If you are unsure about the location of underground plastic pipes, you can contact your local utility company to obtain records of the pipes' locations. Utility companies keep detailed records of the location of pipes and other infrastructure installed in their service areas. You can also contact your city or county government office, as they may have maps or records of underground pipes in your area
   
   
2. Use a Pipe Blockage Detector.
   
   
   Yeipower Pipe Blockage Detector
   
   The Pipe Blockage Detector is designed to help locate blockages and damage in pipes, including underground plastic pipelines. The device come with a long, flexible conductive cable that is inserted into the plastic pipe, and send a signal through the cable, and then detect the signal using a receiver to determine the location and blockages of the buried plastic pipeline.
   
   
3. Magnetic Field Detection
   
   
   CST/berger 19-200SC MagnaTrak 200 Series Magnetic Locator
   
   Magnetic field detection is another method for locating underground plastic pipes. This method uses a magnetic locator that detects the magnetic field generated by the current flowing through the pipes. The magnetic locator is moved along the ground, and the location of the pipes is indicated by changes in the magnetic field.
   
   Magnetic field detection is a non-destructive method that is relatively easy to use and provides accurate results. However, it can only detect pipes that have a magnetic signal, which limits its effectiveness for locating some types of plastic pipes.
   
   
4. Acoustic Detection
   
   
   PQWT L50 Acoustic Water Leak Detector
   
   Acoustic detection is a method that uses sound waves to locate underground plastic pipes. This method involves inserting a listening device into the ground near the suspected location of the pipes. The device detects the sound waves generated by the water flowing through the pipes and indicates the location of the pipes.
   
   Acoustic detection is a non-destructive method that is relatively easy to use and provides accurate results. However, it requires access to the water supply system and may not be effective for locating pipes that are not carrying water.
   
   
5. Ground Penetrating Radar (GPR)
   
   
   LMX200™ GPR
   
   Ground Penetrating Radar (GPR) is a method that uses high-frequency radio waves to locate underground plastic pipes. The waves are transmitted through the ground, and their reflections are captured by a receiver. The reflected waves provide information about the location and depth of the plastic pipes.
   
   GPR is an effective method for locating underground plastic pipes, especially when there is no above-ground indication of their location. However, it requires specialized equipment and expertise to operate, and the accuracy of the results depends on the type of soil and the depth of the pipes.
   
   
6. Visual Inspection
   
   Visual inspection is a method that involves digging up the ground to locate underground plastic pipes visually. This method is typically used when other methods have failed, or when the location of the pipes is known but their depth is unknown. Visual inspection is a destructive method that can be time-consuming and expensive.

Conclusion

Locating underground plastic pipes can be a challenging task, but it is essential for the proper maintenance and repair of various infrastructures. Understanding the different types of plastic pipes and the methods for locating them can save time, money, and effort in locating and repairing them. Ground Penetrating Radar, Magnetic Field Detection, Acoustic Detection, and Visual Inspection are the most common methods for locating underground plastic pipes. Choosing the most appropriate method depends on the type of pipe, the location, and the accuracy required.